21702156

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{239}}^1$

素因数の和:323

約数の個数: 96

約数和(自身を含む): 61931520

約数和(自身を除く): 40229364

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 23, 28, 42, 46, 47, 69, 84, 92, 94, 138, 141, 161, 188, 239, 276, 282, 322, 329, 478, 483, 564, 644, 658, 717, 956, 966, 987, 1081, 1316, 1434, 1673, 1932, 1974, 2162, 2868, 3243, 3346, 3948, 4324, 5019, 5497, 6486, 6692, 7567, 10038, 10994, 11233, 12972, 15134, 16491, 20076, 21988, 22466, 22701, 30268, 32982, 33699, 38479, 44932, 45402, 65964, 67398, 76958, 78631, 90804, 115437, 134796, 153916, 157262, 230874, 235893, 258359, 314524, 461748, 471786, 516718, 775077, 943572, 1033436, 1550154, 1808513, 3100308, 3617026, 5425539, 7234052, 10851078, 21702156]

約数ペア:

[(1, 21702156), (2, 10851078), (3, 7234052), (4, 5425539), (6, 3617026), (7, 3100308), (12, 1808513), (14, 1550154), (21, 1033436), (23, 943572), (28, 775077), (42, 516718), (46, 471786), (47, 461748), (69, 314524), (84, 258359), (92, 235893), (94, 230874), (138, 157262), (141, 153916), (161, 134796), (188, 115437), (239, 90804), (276, 78631), (282, 76958), (322, 67398), (329, 65964), (478, 45402), (483, 44932), (564, 38479), (644, 33699), (658, 32982), (717, 30268), (956, 22701), (966, 22466), (987, 21988), (1081, 20076), (1316, 16491), (1434, 15134), (1673, 12972), (1932, 11233), (1974, 10994), (2162, 10038), (2868, 7567), (3243, 6692), (3346, 6486), (3948, 5497), (4324, 5019)]